Referee whistle, yellow card

Yellow card, red card and whistle. Can be used as a sports referee

It is a simple referee app that can be used in sports etc.

It can sound a whistle, it can be used for sports refereeing, real cash withdrawal training, when you want to call something, pranks, etc.

You can put four types of cards yellow card, red card, orange card, green card in full screen.

It could be interesting to use it as a referee in sports games or games with friends.

It's designed to be easy to use with a simple screen and functions, so give it a try.